Sustainability is a crucial tenet of many businesses now, and one of the easiest ways to cut back on waste in our personal lives is to switch to reusable water bottles or tumblers for all of our drinks on the go. But ease of use doesn't always equal convenience, and lugging those metal mugs around could become a real nuisance in a hurry. If you want to keep your mug eco-friendly while saving space, Hydaway's new collapsible drink tumbler ($28) could be the best way to go.

This travel tumbler is insulated, BPA-free, dishwasher safe, and comes with a silicone straw for smoothies and other drinks. Its design helps it hold 16 ounces of your hot or cold beverages, and when you're done, it collapses into a 1.25-inch disc you can store in your backpack, pocket, or purse. The tumbler comes in a variety of bright colors so you can enjoy your drink in style.

Hydaway also has multiple variations of the tumbler, including a 17-ounce version with a cap lid ($20), spout lid ($26), or travel-themed designs ($35), and 25-ounce bottles with cap lid ($30) or spout lid ($18). The designs based on the Yukon, Mojave, and Cascadia have all sold out on Amazon; however, a new shipment is expected in March. If you want to keep your bottle clean, they also offer travel cases separately ($13) or as a pack with a 25-ounce bottle ($40).

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